Patients meeting the following inclusion criteria were randomly divided into two groups in a 1:1 ratio: paclitaxel/platinum chemotherapy group (TP) and Doxorubicin Hydrochloride Liposome Injection/platinum chemotherapy group (PP) (the specific chemotherapy regimens are as follows.Chemotherapy to tumor progression or adverse reactions can not be tolerated, effective chemotherapy patients with a maximum of 6 cycles of chemotherapy.The primary endpoint was progression-free survival (PFS), and the secondary endpoints were safety and overall survival.Also USES the next-generation sequencing (NGS) method to detect patients with recurrence after tumor tissues (including chest, ascites, homologous recombination pathway in the tumor tissue and peripheral blood ctDNA 11 genetic mutations, rearrangement, and so on and so forth, whether patients with analysing the homologous recombination pathways for paclitaxel/platinum chemotherapy or Doxorubicin Hydrochloride Liposome Injection/platinum chemotherapy has different sensitivity.
